345 results about "Wire tension" patented technology

The invention discloses a plug-in inductor winding process control method based on production parameter dynamic compensation, and provides a closed-loop compensation control strategy taking a physical field evolution model as a core aiming at the problems of unstable sensing quantity and non-uniform structure in the traditional process. The method comprises the following steps: firstly, constructing an ideal physical field reference model according to target inductance parameters and a structure, and describing an evolution law of characteristics such as a magnetic field, an electric field or impedance in an ideal state; in the actual winding process, a physical field signal is collected through a sensor, production parameters such as wire tension and main shaft rotating speed are obtained, and a physical field distribution snapshot of the current winding state is generated. And the system compares the extracted actual features with the reference model, identifies a dominant disturbance source causing deviation in combination with real-time production parameters, and outputs a disturbance type label carrying causal information. And according to a label and a production parameter change trend, a compensation instruction is dynamically generated and executed, fine adjustment of tension, a winding displacement track or density is realized, and consistency and precision of an inductor finished product are ensured.

The invention provides an intelligent winding and detecting method and system for a three-phase integrated coil of a soft start device, and relates to the technical field of winding of the three-phase integrated coil, and the method comprises the steps: determining the electrical parameters of coil winding, and preparing a winding material; calculating the optimal tension within the T moment by establishing a tension mathematical model to adaptively control the tension of the wire; performing real-time correction and compensation on the key parameters by using a neural network model; the visual detection control center detects the coil in real time and judges whether errors occur in the winding process, and if yes, winding is stopped, and an alarm is given out; and putting the wound coil into epoxy resin glue for defoaming to ensure that the insulating material covers a gap between the surface of the wire and the coil. The wire tension is adaptively adjusted by using the model prediction control algorithm and the neural network model, so that the wire tension is controlled within the preset range, the wire is prevented from being damaged due to excessive stretching or loosening, the integrity and stability of the wire are favorably kept, and the overall performance of the soft start device is improved.

The invention provides a spring steel wire tension detection device capable of being quickly disassembled and assembled, which belongs to the technical field of steel wire detection and comprises a tensile machine, a buffer mechanism, a fixing mechanism, a locking mechanism and a triggering mechanism. The tensile machine comprises two clamps, and each clamp comprises a buffer mechanism arranged on the tensile machine and used for providing buffer force for a spring steel wire; the fixing mechanism is connected with the buffering mechanism, and the fixing mechanism is matched with the buffering mechanism to clamp and fix the spring steel wire; the locking mechanism is arranged on the buffering mechanism, and the fixing mechanism is limited and locked by the locking mechanism; and the triggering mechanism is arranged on the buffering mechanism, and the buffering mechanism triggers the triggering mechanism to move so as to relieve limiting of the locking mechanism to the fixing mechanism. According to the device, limiting can be automatically relieved after the spring steel wire is broken, an operator does not need to manually conduct complex unlocking operation, the spring steel wire can be rapidly pulled away, rapid dismounting of the spring steel wire is achieved, and the working efficiency is remarkably improved.

The invention discloses a safety sag calculation method and system for a power transmission tower wire, and the method comprises the steps: constructing a wire stress change relation according to the elastic deformation of the wire under each control condition and the original wire length of the wire; wherein each control condition is set according to a preset environment parameter; based on the wire stress change relation and a preset nonlinear stress change relation, determining the wire tension characteristic under the actual working condition; and obtaining a safety sag meeting a preset lead safety requirement according to the tension characteristic of the lead, and adjusting the sag of the lead under an actual working condition according to the safety sag. According to the method, the nonlinear characteristic of the wire is considered when the tension characteristics of the wire of the power transmission tower in different environments are calculated, so that the calculated wire sag is more accurate and meets the safety requirement of an overhead power transmission line, and sufficient data support is provided for effectively evaluating and ensuring the safety of the power transmission line.

The invention discloses an intelligent control system for wire tension of a wire drawing machine and a control method thereof, and relates to the technical field of industrial automation. During operation of the system, a data preprocessing module, a multi-parameter analysis module, a fault prediction and early warning module and an intelligent control and optimization module are integrated; the method comprises the following steps: acquiring and analyzing running state information and environmental data of a wire drawing machine in real time, establishing a tension dynamic model, a thermodynamic tension distribution model and a dynamic humidity influence model of the wire drawing machine, and obtaining a fault prediction index value PF (t) of the wire drawing machine; the wire drawing machine is regulated and controlled according to the preliminary assessment risk value SF (t) and the secondary fault risk value SF2 (t) obtained through assessment, the running state information of the regulated wire drawing machine is fed back, potential equipment faults are predicted, running parameters are automatically adjusted to ensure continuous and stable running of equipment, the wire tension can be accurately monitored and regulated, and the production efficiency is improved. And equipment faults caused by tension fluctuation are reduced.

The utility model provides a rotary driver driven by an SMA wire, wherein the square head sections at both ends of the output shaft are connected to the fixed end, and a torque transmission disc and a driving disc are installed on the middle circular shaft section; the driving disc is fixedly connected to the output shaft, and the torque transmission disc is supported on the output shaft through a bearing. The SMA wire passes through the axial circular holes on the torque transmission disc and the driving disc and is arranged in a folded or parallel manner, and the outer edge of the torque transmission disc is fixedly connected to the driving end through a torque transmission housing to output torque. When subjected to an external load, the torque transmission housing rotates relative to the output shaft, and the torque transmission disc rotates relative to the driving disc, and the driver maintains balance under the action of the external load and the tension of the SMA wire; when driving is required, the SMA wire is electrically heated to cause it to undergo phase change deformation and shrink, and the torque transmission disc is driven to rotate, thereby realizing relative rotation between the driving end and the fixed end; after the driving is completed, the SMA wire is powered off and cooled, and the driver returns to the state before driving under the action of the external load. The utility model has a simple structure, a small radial dimension, a large output torque, and a high driving efficiency.

The invention discloses a control system and method for a steel wire traction type overhead rail inspection robot with a sliding contact line, and relates to the technical field of modern industry and infrastructure construction.The system comprises a steel wire traction control module and traction devices connected with the two ends of a rail through steel wires, the traction devices are provided with servo motors, and the servo motors are used for driving traction wheels to rotate; the movement control of the inspection robot along the track is realized; the sliding contact line power supply control module comprises a sliding contact line laid along the track and a power taking device carried by the inspection robot, and the sliding contact line is matched with the power taking device and used for providing continuous and stable power supply control for the inspection robot; the steel wire traction control module is further integrated with a steel wire tension real-time monitoring control unit, and the steel wire tension real-time monitoring control unit is electrically connected with the servo motor and used for dynamically adjusting the output power of the servo motor according to the tension data of the steel wire, so that the tension of the steel wire is kept within the preset optimal range. According to the invention, intelligent control of the inspection robot can be realized.

The invention relates to the technical field of motor stator coil winding machine control, in particular to a micro motor stator coil winding machine and a control method thereof.The control method specifically comprises the steps that the transmission lag value of an enameled wire indirect tension value is determined according to the synchronous fluctuation condition between a tension actual measurement sequence and indirect tension sequences under different moving step lengths; lagging correction is carried out on the indirect tension value, the tension period correlation strength in the running stage of the stator coil winding machine is considered, and the interference distortion degree is evaluated; according to the change trend of the paying-off linear speed and the difference between the tension measured value and the set value, the winding looseness of the enameled wire is obtained; obtaining a weight through the two indexes, carrying out weighted fusion on a measured value and a predicted value to obtain a tension correction value, and carrying out motor stator coil winding machine enameled wire tension control by combining a PID control algorithm; the tension control precision of the motor stator coil winding machine is improved, the tension control effect of the coil winding machine is enhanced, and the tension fluctuation ratio of enameled wires is reduced.

The invention relates to the technical field of wires and cables, in particular to a low-cost and high-conductivity conductor, processing equipment and a processing technology. The processing equipment comprises a supporting disc, a bearing supporting plate, a limiting support, a wire storage wheel, a damper, a bearing supporting pipe, a bearing support, a bearing ring, a wire arranging supporting pipe, a bearing disc, a wire arranging ring, a wire stranding die, a tension detection mechanism used for detecting the tension of a sub-wire and a correction unit used for correcting the tension of the sub-wire. The detection mechanism comprises a plurality of detection output ends annularly arranged on the bearing disc, the correction unit comprises a transmission mechanism and a brake mechanism which are arranged on each bearing supporting plate, each brake mechanism is provided with a speed reduction output end, and the detection output ends are connected with the speed reduction output ends through the transmission mechanisms; the wire storage wheel is used for storing the sub-wires shaped by the wire drawing die. The equipment can automatically correct the loose sub-wires, and ensures the normal operation of a cable stranding process.

The invention relates to the technical field of material mechanical property testing, and discloses a composite steel wire tension test method which comprises the following steps: executing a micro-unloading and reloading action at each increment end point of stepping loading, and synchronously calculating to obtain instantaneous system rigidity Ki, dissipated energy Wd and system rigidity change rate K based on force displacement data of the action, according to the method, through a set of built-in judgment rules, firstly, the K value is used for filtering measurement artifacts generated by slippage of the clamp, then the damage inflection point is identified according to irreversible decline of the Ki value, and the physical property of the damage is discriminated in combination with two-dimensional state data of Ki and Wd, so that the traditional one-way destructive test is changed into the traditional one-way destructive test. The method is converted into a staged failure analysis process capable of performing online diagnosis, and provides a direct physical observation window for distinguishing functional damage and structural damage of the material, so that the depth and credibility of information acquisition of the tension test are improved.

The invention relates to the technical field of power transmission line icing disaster monitoring, in particular to a power transmission line deicing jump tripping risk early warning method, system and device and a storage medium. The visual monitoring device captures the motion trail of the ground wire in real time and calculates the spatial distance, meanwhile, a three-dimensional power simulation model of the power transmission line is constructed to simulate and calculate the jumping process of the wire after deicing, and the distance data obtained through the two means are fused to form the minimum insulation distance; on the basis of wire tension changes and ice coating thickness abrupt changes collected by the ice coating monitoring terminal and wire displacement characteristics captured by the visual monitoring equipment, the occurrence of a deicing jump event is judged through multi-source data cross validation; and when it is judged that the ice-shedding jump event occurs, the discharge voltage is calculated according to the minimum insulation distance in combination with the standard discharge characteristic curve, the discharge voltage is compared with the line operation voltage to obtain a voltage margin, tripping risk grading evaluation is performed based on the voltage margin, and corresponding early warning information is output. The problem that a dynamic process cannot be captured by traditional static monitoring is solved.

According to the composite continuum mechanical arm control method and system and the mechanical arm, friction loss is considered, the drive wire node tension transmission relation is analyzed, drive wire tension distribution is obtained, and then deformation drive of a flexible beam is equivalent; statics analysis is carried out on the notch continuum mechanical arm, a static model is established by using an Euler-Bernoulli beam theory, and the static model is solved by using a Taylor series expansion method; based on static model data, a Kepler elliptic equation is used for fitting the tail end track of the notch continuum mechanical arm, and a relation equation of the concentric tube continuum mechanical arm relative to the tail end coordinates is constructed; and according to matrix coordinate conversion, an equation of key parameters needed for solving the control parameters is established and iteratively solved, and a control parameter equation set is established to solve the control parameters of the composite continuum mechanical arm. The control response timeliness can be improved, and the control accuracy and precision can be improved.

The invention discloses a winding device with a tension adjusting function for transformer production, and relates to the technical field of transformer production, the winding device comprises a pay-off rack, a positioning seat and a power seat, the pay-off rack is provided with a plurality of fixed shafts, and the fixed shafts are arranged on the positioning seat; compared with an existing winding device for transformer production, dynamic adjustment of wire tension is achieved, winding precision is greatly improved, friction force can be adjusted in real time according to the wire pay-off speed through cooperation of the brake disc at the end of the fixed shaft on the pay-off frame and the brake, it is ensured that the tension degree of the wire is stable in the winding process, and the winding efficiency is improved. The winding machine is further provided with a positioning mechanism, the positioning mechanism has an eccentricity correction function, in the winding process, if the axis of the transformer framework deviates, fine adjustment force can be applied to the end of the transformer framework through a correction assembly, so that eccentricity is automatically compensated, and the winding accuracy is improved. And the axis of the transformer framework and the axis of the ejector rod coincide again.

The utility model relates to the technical field of diamond beaded wire saws, in particular to a diamond beaded wire saw rope tension automatic adjusting device which comprises an n-shaped mounting seat, first adjusting mechanisms are symmetrically arranged at the positions, close to the left side and the right side, of the top of the n-shaped mounting seat, each first adjusting mechanism comprises an air cylinder, and the end of a piston rod of each air cylinder is connected with an n-shaped moving frame. An auxiliary wheel is rotatably connected to the rear side surface of the inner wall of the n-shaped moving frame through a bearing, a mounting plate is fixedly welded to the end, away from the driving wheel, of the n-shaped moving frame, a graduated scale is fixedly connected to the top of the mounting plate through a bolt, and the top end of the graduated scale penetrates through the top of the n-shaped mounting base and is slidably connected with the n-shaped mounting base; and the first scale grooves are uniformly arranged at equal intervals. According to the automatic rope tensioning force adjusting device for the diamond beaded rope saw, by arranging the first adjusting mechanism and the second adjusting mechanism, the device can conveniently adjust the rope tensioning force of the diamond beaded rope.

The utility model belongs to the technical field of tension beam structures, and particularly relates to a three-way pre-tightening steel wire tension beam structure. A three-way pre-tightening steel wire tension beam structure comprises a cross beam, a steel wire and a pre-tightening assembly, the pre-tightening assembly is installed on the cross beam, a steel wire groove is formed in the cross beam, and the steel wire is installed in the steel wire groove through the pre-tightening assembly; the utility model provides a three-way pre-tightening steel wire tension beam structure, and aims to solve the problem of balance between the bearing capacity and the self weight of a cross beam in a tension beam structure in the prior art.

The invention discloses a metal wire straightening device which sequentially comprises a pay-off module and a straightening module in the wiring direction of a metal wire, and the straightening module comprises a plurality of tower pulley sliding components which are sequentially arranged in the wiring direction of the metal wire. The tension of the metal wires is adjusted through the pay-off mechanism, meanwhile, the metal wires are straightened through cooperation with the rotating speed difference of the tower pulley sliding wiping mechanisms, the overall structure is simple, and damage to the metal wires is avoided.

The invention relates to the technical field of thread tension adjusting control, in particular to a thread tension self-adaptive adjusting method of a flat sewing machine. Current and historical line tension time sequence data are obtained, and data support is provided for adjustment. By comparing the difference between the current tension and the historical preset tension, a tension deviation index is determined, and abnormal fluctuation is found preliminarily. Thirdly, comparing the numerical difference of the tension time sequence data of each line and the change along with time, determining a tension characteristic value, and reflecting the tension change condition; and integrating the current deviation index and the deviation of all the tension characteristic values to obtain a current tension adjustment degree value so as to realize comprehensive evaluation. In order to achieve more accurate adjustment, the current adjustment value is adjusted based on the deviation index and the adjustment degree value of the historical monitoring period to obtain a new value, so that the adjustment is more continuous and stable. Finally, according to the new adjustment value, the current preset tension and the historical preset tension, the self-adaptive tension value of the next period is determined, dynamic and self-adaptive adjustment is achieved, and the accuracy is improved.

There may be provided a cable management system for an electric vehicle charger. The cable management system may include a mechanical wire coupled to a charging cable associated with the electric vehicle charger and an enclosure. The cable management system may include a wire tension sensor engaging the mechanical wire. The wire tension sensor may generate a sensor output based on a force applied to the mechanical wire. The wire retractor may be configured to retract the mechanical wire into the enclosure and extend the mechanical wire from the enclosure. The cable management system may include a controller coupled to the wire tension sensor. The controller may be configured with instructions which, when executed, cause the controller to control the wire retractor based on an amount of force applied to the mechanical wire.

This invention discloses a winding device for transformer production with tension adjustment function, relating to the field of transformer production technology. The winding device includes a wire feeding frame, a positioning seat, and a power seat. The wire feeding frame is equipped with several fixed shafts. Compared with current transformer production winding devices, this invention achieves dynamic adjustment of wire tension, significantly improving winding accuracy. Through the cooperation of the brake disc and brake at the end of the fixed shaft on the wire feeding frame, the friction force can be adjusted in real time according to the wire feeding speed, ensuring stable wire tension during winding and effectively avoiding problems such as loose coils, excessive tightness, or coil stacking. This invention also includes a positioning mechanism with an eccentricity correction function. During the winding process, if the transformer skeleton axis deviates, the correction component can apply a fine-tuning force to the end of the transformer skeleton to automatically compensate for the eccentricity, making the transformer skeleton axis coincide with the top rod axis again.

The utility model is applicable to the field of detection equipment, and provides a membrane filament tension detection device of an immersion type ultrafiltration membrane, which comprises a base plate and a locking cylinder, the base plate and the locking cylinder are fixedly arranged, the front end of the locking cylinder is rotatably provided with a torsion round tube, and the torsion round tube is connected to a torsion mechanism; a telescopic column is slidably inserted into the torsion round pipe in a penetrating mode, and a guide groove mechanism is arranged between the torsion round pipe and the telescopic column. When the membrane filament winding device is used, membrane filaments wind around three groups of arc-shaped grooves and then are wound on the winding roller, at the moment, the locking air cylinder drives the locking square rod to stretch into the locking square opening to fix the discharging roller and the winding roller, and the electric push rod drives the telescopic column to contract towards the interior of the torsion round pipe; the expansion tiles on the outer sides of the torsion round pipe and the telescopic column expand towards the outer side, then the membrane filaments on the outer sides of the expansion tiles are subjected to tension, the tension sensor on the output rod of the electric push rod can calculate the tension of the membrane filaments, and therefore the function of batch detection is achieved.

The present disclosure relates to relates to a assistive wearable system for relieving muscle fatigue in the neck and shoulders, the assistive wearable system includes a head gear mounted to cover a head of a user, a wearable platform mounted on an upper body of the user, and a wire tension controller that maintains tension of a wire by being seated on the wearable platform and fixing to operate a semi-active ratchet mechanism structure as a brake to detect a moment a movement of the wire stops as connected to the head gear by the wire, and stop unwinding of the wire, wherein the ratchet mechanism rotates the ratchet based on the unwinding and pulling of the wire.

The invention relates to the technical field of data processing, and provides a stranding machine-oriented stranding tension monitoring method and system, and the method comprises the steps: obtaining a stranding tension sequence; decomposing the stranded wire tension sequence into a plurality of component sequences; obtaining a frequency index according to the component sequence; obtaining a main tension possibility degree according to the frequency index, the component sequence and the stranded wire tension sequence; obtaining a main tension sequence according to the possible degree of the main tension; acquiring a real-time frequency sequence; obtaining a reference frequency according to the amplitude corresponding to the main tension sequence and other component sequences at the same frequency value; the tension change degree is obtained according to the number of the reference frequencies, the main tension sequence and the real-time frequency sequence of the main tension sequence; obtaining tension abnormality according to the main tension sequence and the tension change degree; and obtaining a stranded wire tension monitoring result of the stranding machine according to the tension abnormality. According to the invention, the abnormity of the stranded wire tension is monitored through the tension abnormities, and the accuracy of the monitoring result is improved.

The utility model belongs to the technical field of metal wire production, and particularly relates to a metal wire tension adjusting device which comprises a wire drawing machine body. A first wire drawing wheel and a second wire drawing wheel are arranged on the inner side wall of the wire drawing machine body; a traction assembly is arranged in the wire drawing machine body; a bottom plate is fixedly connected to the interior, close to the second wire drawing wheel, of the wire drawing machine body; a pair of fixed guide grooves are formed in the side wall, away from the wire drawing machine body, of the bottom plate in a staggered manner; the fixed guide groove is fixedly connected to the side wall of the bottom plate; an ejector rod is arranged in the fixed guide groove in a sliding fit mode. Tensioning wheels are fixedly connected to the ends, close to each other, of the ejector rods. According to the step, a fixed guide groove, an ejector rod, a tensioning wheel and an adjusting screw rod are arranged, the adjusting screw rod is screwed to drive the tensioning wheel to move to adjust the tension, the tension of the copper wire is adjusted to be within a specified range, the step of replacing a tensioning spring is omitted, the convenience of tension adjusting operation is improved, and the adaptability of the device is improved.

The invention belongs to the technical field of wire harness preparation, and provides a preparation method of a flexible integral wire harness, which comprises the following steps: monitoring the outer diameter of a wire, identifying an unattached wire, judging whether a birdcage phenomenon occurs or not, if so, detecting the tension of the wire, identifying a wire with insufficient tension, and if not, detecting the tension of the wire; and carrying out coincidence comparison, section comparison and comparison of wire tension and wire outer diameter in a section with unattached wires, judging whether the birdcage phenomenon is caused by insufficient tension of the wires, if so, carrying out insufficient tension section comparative analysis on the wires with insufficient tension, identifying birdcage initiating wires in the wires with insufficient tension, and if not, identifying the birdcage initiating wires in the wires with insufficient tension. And according to the birdcage, initiating a wire to determine a twisting simulation tension range, carrying out twisting simulation under different tensions, determining a mapping relation model of insufficient tension and birdcage abnormal probability, determining a tension early warning value, and in the twisting process, when the wire tension reaches the tension early warning value, carrying out wire tension regulation and control to ensure the process quality stability.

The utility model relates to the technical field of blooming rivet nuts, and discloses a waterproof wire tension tester with a protection structure, which comprises a processing table and a fixed seat, connecting seats are fixed on two sides of the front end and the rear end of the processing table, and the tail end of a first bolt is connected to the inside of a connecting hole. The connecting seats are fixed at the front end and the rear end of the machining table, the connecting seats can also be fixed at the two sides of the machining table, then the shielding protection plates are arranged at the front position and the rear position of the machining table, and the transparent glass plate is fixed in the middle of the shielding protection plates. A first bolt is adopted to pass through a mounting hole and a connecting hole to complete locking and fixing of the shielding protection plate and the connecting seat, so that the shielding protection plate can shield the front and back positions of the machining table and can shield the two side positions in the same way, and after the material is broken, the follow-up swinging phenomenon of the material can be shielded by the shielding protection plate; therefore, the overall protection capability is well improved in the working process.

The utility model discloses a high-strength steel wire stress corrosion test device which comprises a tensioning base, an anchoring base and a solution box, wherein the relative positions of the tensioning base and the anchoring base are fixed, and the solution box is arranged between the tensioning base and the anchoring base; the solution box is configured to contain a corrosion solution and penetrate through a plurality of high-strength steel wires soaked in the corrosion solution, the anchoring base is connected with one ends of the high-strength steel wires in an anchoring mode, and the other ends of the high-strength steel wires are fixedly connected to the tensioning steel plate. And the tensioning steel plate is screwed on the tensioning base through at least one high-strength bolt along the stretching direction of the high-strength steel wire in an elastic manner. The high-strength steel wire stress corrosion test device disclosed by the utility model can realize anchoring fixation, simple disassembly and assembly and steel wire tension data acquisition, and is simple and ingenious in structure and simple and feasible to operate.

The application discloses a steady-state unwinding device, process and application of high-rigidity high-frangibility high-torque wire, and belongs to the field of textile processing technology.The device realizes controlled rotation of the yarn cylinder and steady-state circumferential unwinding of the wire by clamping and positioning the upper and lower ends of the yarn cylinder and combining up-down, left-right and front-back adjustable structures and damping control, thereby effectively inhibiting the problems of knotting, small braids and tension fluctuation of high-rigidity high-frangibility high-torque wire caused by residual torque in the unwinding process.The steady-state unwinding process can output the wire in a uniform and continuous state, is suitable for textile processing of inorganic non-metallic high-torque fiber, high-modulus high-torque organic fiber and high-twist high-twist yarn, and can stably feed into processes such as plying, doubling, heat setting and weaving, thereby ensuring the consistency of wire tension and the stability of product performance in the subsequent processing process.

The utility model relates to the technical field of drawing reducing diameter device, especially to a kind of crude product welding wire welding wire drawing reducing diameter device, its improve the convenience of control adjustment to welding wire tension size, improve the flexibility of welding wire drawing force adjustment;Including base and recess, recess is set on the outside wall of base;Still include resistance device, conveying device, adjusting device, spool, fixed base, first tension wheel and second tension wheel, the both ends of spool are embedded in recess inside, resistance device is provided on base, resistance device is used to provide resistance for the rotation of spool, fixed base is set on the outside wall of base, a plurality of first tension wheels are rotatably installed on fixed base, a plurality of second tension wheels are rotatably set on fixed base by adjusting device moving up and down, conveying device is set on fixed base, and conveying device is used to draw and convey welding wire.

The invention relates to a special maintenance tool for overhead ground wire tension string hardware. The special maintenance tool structurally comprises a connecting frame, a wire clamping fixture, a telescopic pull rod, a connecting plate and a connector, a clamping groove is formed in the middle of the connecting frame, a wire clamping fixture is clamped at the clamping groove, the wire clamping fixture comprises a wire clamping device and a clamping sleeve, the wire clamping device is installed in the clamping groove, and the clamping sleeve is installed outside the clamping groove; the two ends of the connecting frame are connected with the connectors respectively, the connectors are connected with one ends of the telescopic pull rods, the other ends of the telescopic pull rods are connected to the connecting plate, and the two ends of the connecting plate are connected with the telescopic pull rods respectively. The beneficial effects of the invention are that two-side tensioning is more stable, the telescopic pull rod is connected, the length of the tool is convenient to adjust, use scenes of different sizes are facilitated, the conical resistance wire clamping fixture is more stable in wire clamping and convenient to install, the clamping sleeve is arranged, so that the wire clamping device is more stable in the clamping groove, and when the overhead ground wire tension string hardware fitting is overhauled, the maintenance efficiency is improved. The cable is fixed more safely, and the surface of the cable is not damaged.

The utility model relates to the technical field of coil production, and discloses a tension-adjustable winding machine which comprises a mounting seat, and a guide device is arranged on the top end face of the mounting seat. According to the tension-adjustable winding machine, the bottom of the arc-shaped plate passes through, the middle of the arc-shaped plate is higher than the two sides of the arc-shaped plate, so that a wire is located in the middle of the arc-shaped plate, the wire is centered, the tension adjusting accuracy is improved, the movable block transversely reciprocates, the wire is evenly distributed on the winding roller, and the uniformity of the tension of the wire is improved; meanwhile, the diameter of the winding roller is larger and larger as the winding roller winds the wire, at the moment, the electric telescopic rod shrinks, the movable block also descends synchronously, the situation that the tension force on the wire is changed due to the increase of the diameter of the winding roller is avoided, and the consistency of the tension force of the wound wire is kept; the arc-shaped chamfer enables the wire to pass through the limiting hole and the limiting ring more smoothly, resistance and friction are reduced, and the movement stability and accuracy of the wire are ensured.